$615 million

That’s what Greece paid the IMF today, Bloomberg reported. Greece’s government is caught between its promises to ease austerity and the bills it owes international lenders, and the country’s cash reserve may be running dry. 

16

That’s the ranking of United States on the Social Progress Index. This alternative measurement to GDP, conducted by the Social Progress Imperative, ranks the Unites States 16th out of 133 countries. Despite being the 5th in GDP per capita, the U.S. lags in health, safety, and access to information. 

41 percent

That’s the percentage of women in Harvard Business School‘s student body. The school has launched a new program to tackle this persistent imbalance. For a fee of $500, women can take a peek at the business school by trying it out for a weekend.

$31 million

That’s how much a group of new Super-PACs associated with Senator and presidential hopeful Ted Cruz expect to raise by the end of the week, Bloomberg reported. It’s the making of a huge war chest, and Cruz has a history of big fundraising with political action committees. That said, the numbers are early and coming from an associate of Cruz, so take them with a grain of salt or two.

15 percent

The maximum discount John Hancock Financial will give life insurance policyholders who wear fitness trackers. They’re the first insurer to tie coverage to the growing wearables market, just in time for Apple’s foray into smart watches later this month.

$638,142.64

That’s how much travelers collectively left behind at airport security checkpoints in 2013, CNBC reported, and the change jar is growing. Any money left behind goes directly into the TSA’s budget, and some airports have placed donation boxes for local charities in front of security so flyers can donate their spare change somewhere else.